DuraBreeze Lite Carbon Filter, 10" x 40", 1400 cfmFeaturing open air aluminum mesh housing and a 1. 8 inch deep bed of RC412 Australian virgin activated carbon, the 10 inch by 40 inch DuraBreeze Lite Carbon Filter weighs in at only 41. 4 pounds, making it easier to move and suspend than its standard steel cousins. This filter is rated for airflow up to 1,400 cubic feet per minute and effectively combats odors, dust and more over a life span of approximately two years. Includes two pre filters, an